CVE-2022-41946 TemporaryFolder on unix-like systems does not limit access to created files in pgjdbc
Local attackers can read temporary files created by the PostgreSQL JDBC driver, potentially exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-41946?
CVE-2022-41946 is a medium-severity vulnerability in Debian Debian Linux, published on 23 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
pgjdbc is an open source postgresql JDBC Driver. In affected versions a prepared statement using either `PreparedStatement.setText(int, InputStream)` or `PreparedStatemet.setBytea(int, InputStream)` will create a temporary file if the InputStream is larger than 2k. This will create a temporary file which is readable by other users on Unix like systems, but not MacOS. On Unix like systems, the system's temporary directory is shared between all users on that system. Because of this, when files and directories are written into this directory they are, by default, readable by other users on that same system. This vulnerability does not allow other users to overwrite the contents of these directories or files. This is purely an information disclosure vulnerability. Because certain JDK file system APIs were only added in JDK 1.7, this this fix is dependent upon the version of the JDK you are using. Java 1.7 and higher users: this vulnerability is fixed in 4.5.0. Java 1.6 and lower users: no patch is available. If you are unable to patch, or are stuck running on Java 1.6, specifying the java.io.tmpdir system environment variable to a directory that is exclusively owned by the executing user will mitigate this vulnerability.
Which versions are affected by CVE-2022-41946?
9 open source packages ship an affected version, including org.postgresql:postgresql and postgresql-jdbc-driver. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
org.postgresql:postgresql Maven | From 42.2.0 | 42.2.27 |
org.postgresql:postgresql Maven | From 42.2.0 | 42.2.27 |
org.postgresql:postgresql Maven | From 42.3.0 | 42.3.8 |
org.postgresql:postgresql Maven | From 42.3.0 | 42.3.8 |
org.postgresql:postgresql Maven | From 42.4.0 | 42.4.3 |
org.postgresql:postgresql Maven | From 42.4.0 | 42.4.3 |
3 more packages
org.postgresql:postgresql Maven | From 42.5.0 | 42.5.1 |
org.postgresql:postgresql Maven | From 42.5.0 | 42.5.1 |
postgresql-jdbc-driver Bitnami | From 42.2.0 | 42.2.27, 42.3.8, 42.4.3, 42.5.1 |
Linux distribution packages (31)
postgresql-jdbc AlmaLinux:8 | All versions | 42.2.14-2.el8 |
postgresql-jdbc-javadoc AlmaLinux:8 | All versions | 42.2.14-2.el8 |
postgresql-jdbc AlmaLinux:9 | All versions | 42.2.27-1.el9 |
postgresql-jdbc Red Hat:enterprise_linux:8::appstream | All versions | 0:42.2.14-2.el8 |
postgresql-jdbc-javadoc Red Hat:enterprise_linux:8::appstream | All versions | 0:42.2.14-2.el8 |
postgresql-jdbc Red Hat:enterprise_linux:9::appstream | All versions | 0:42.2.27-1.el9 |
ovirt-ansible-collection Red Hat:rhev_hypervisor:4.4::el8 | All versions | 0:2.4.2-1.el8ev |
ovirt-ansible-collection Red Hat:rhev_manager:4.4:el8 | All versions | 0:2.4.2-1.el8ev |
ovirt-engine Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-backend Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-dbscripts Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-health-check-bundler Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-restapi Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-setup Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-setup-base Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-setup-plugin-cinderlib Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-setup-plugin-imageio Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-setup-plugin-ovirt-engine Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-setup-plugin-ovirt-engine-common Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-setup-plugin-vmconsole-proxy-helper Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-setup-plugin-websocket-proxy Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-tools Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-tools-backup Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-vmconsole-proxy-helper Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-webadmin-portal Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
ovirt-engine-websocket-proxy Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
postgresql-jdbc Red Hat:rhev_manager:4.4:el8 | All versions | 0:42.2.14-2.el8ev |
postgresql-jdbc-javadoc Red Hat:rhev_manager:4.4:el8 | All versions | 0:42.2.14-2.el8ev |
python3-ovirt-engine-lib Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
rhvm Red Hat:rhev_manager:4.4:el8 | All versions | 0:4.5.3.7-1.el8ev |
candlepin Red Hat:satellite:6.12::el8 | All versions | 0:4.1.20-1.el8sat |
Products include Debian Debian Linux, Postgresql Postgresql Jdbc Driver.
How do I fix CVE-2022-41946?
Upgrade org.postgresql:postgresql to a fixed version for your release line: 42.2.27, 42.3.8, 42.4.3 or 42.5.1.
Is CVE-2022-41946 being exploited?
There is no known exploitation of CVE-2022-41946 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALSA-2023:2378, ALSA-2023:2867, BIT-postgresql-jdbc-driver-2022-41946, DEBIAN-CVE-2022-41946, DLA-3218-1, GHSA-562r-vg33-8x8h and 11 more.